.then((gasEstimate) => {
const { sellHowMuchAbsolute, sellWhichTokenAddress, buyHowMuchAbsolute, buyWhichTokenAddress, userHigherId } =
Offers.offerContractParameters(sellHowMuch, sellWhichToken, buyHowMuch, buyWhichToken);
Dapple['maker-otc'].objects.otc.offer['uint256,address,uint256,address,uint256,bool'](sellHowMuchAbsolute, sellWhichTokenAddress,
buyHowMuchAbsolute, buyWhichTokenAddress, userHigherId, true,
{ gas: Math.min(gasEstimate[0] + 500000, gasEstimate[1]) }, (error, tx) => {
callback(error, tx);
if (!error) {
Offers.updateOffer(tx, sellHowMuchAbsolute, sellWhichTokenAddress, buyHowMuchAbsolute, buyWhichTokenAddress,
web3Obj.eth.defaultAccount, Status.PENDING);
Transactions.add('offer', tx, { id: tx, status: Status.PENDING });
}
});
})
Offers.newOfferGasEstimate = async (sellHowMuch, sellWhichToken, buyHowMuch, buyWhichToken) => {
const { sellHowMuchAbsolute, sellWhichTokenAddress, buyHowMuchAbsolute, buyWhichTokenAddress, userHigherId } =
Offers.offerContractParameters(sellHowMuch, sellWhichToken, buyHowMuch, buyWhichToken);
const data = Dapple['maker-otc'].objects.otc.offer['uint256,address,uint256,address,uint256,bool'].getData(sellHowMuchAbsolute, sellWhichTokenAddress,
buyHowMuchAbsolute, buyWhichTokenAddress, userHigherId, true);
const latestBlockPromise = Offers.getBlock('latest');
const estimateGasPromise = new Promise((resolve, reject) => {
web3Obj.eth.estimateGas({ to: Dapple['maker-otc'].environments[Dapple.env].otc.value, data }, (error, result) => {
if (!error) {
resolve(result);
} else {
reject(error);
}
});
});
return Promise.all([estimateGasPromise, latestBlockPromise]).then((results) => [results[0], results[1].gasLimit]);
};